Center-bearing for cars.



B. D. Locxwoon.v ENTER BEARING rok CARS.

APPLICATION FILED DEC. 5. 19H

Patented Nov. 30, 1915.

2 SHEETS-sash l.

COLUMBIA PLANuGRAx-I C0.. wASHlNn'rON. D. c.

B. D. LOCKWOOD.

CENTER BEARING FOR CARS.

APPLICATION FILED DEC. 5, I9 I l 1,161,941. Patented Nov. 30, 1915.

2 SHEETS-SIIEET 2.

R ad Witneoloeo OOLLIMBIA PLANOGRAPHv CO.. WASHINGTON. D. C..

narran stamens ramena? cierren.

Bunns D. LooKWoon, or

BELLEVUE.' PENNSYLVANIA,'ASSGNOR TO PRESSED STEEL CAR COMPANY, OFPITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

CENTER-BEARING FOR CARS.

To all whom lima-y concern.'

Be it known that I, BURNS D. Locnwoon, a citizen of the United States,residing at No. 11441 Dawson avenue, Bellevue, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Center-Bearings for Cars, of which the followingisa full, clear,`and exact description, such as'will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, forming part `of thisspecification.

vThis invention relates to a new and useful improvement in centerbearings for railway cars the object being to provide means whereby thecenter bearing may be adjusted in a vertical direction relativeto theunderframe of the car, to compensate for wear of the center bearing, orthe sagging or distortion of the end portion of the car and itsunderframe.

. Another object of my invention is to provide means whereby the couplerheadV (not shown) resting in or depending from the end sill muy` beadjusted to substantially its normal height above the track rails, whenfor any reason, such as wear of journals and journal bearings, set ofsprings or distortion of the end of the car, the height of the couplerhead above the traclr'rails is outside the permissible limits prescribedby the safety appliance act of 1893, and .amendments thereto of 1896 and1903.

lith these objects in view, they invention consists in providing theupper .portion of the center bearing member with a screw thread on itscylindrical surface, such screw thread cooperating with a correspondingscrew threadformed in the members of the underframe with which thecenter bearing member is connected.

Another feature of the invention resides in the means for locking thebearing member in its adjusted position, and still, other features ofthe invention reside in the construction, arrangement and vcombinationof the several parts, all as will hereinafter be described, andafterward pointed out in the claims it being understood that changes inthe form, proportion, size and minor details may be made within thelscope of the claims, without departing from the spirit or sacri- (icingvany of the advantages of the invention.

Specication of Letters Patent.

Patented Nov. 30, 1915.

Apancation flied. December 5, 1911. serial No. 664,099. A

In the drawings, in which similar reference characters refer to similarparts, throughout the several views, Figure 1y is a part plan view ofan` underframe, showing the application of my new center bearing inaccordance with my invention; Fig. 2 is a part longitudinal-sectionalview, the section being taken on line 2 2 of Fig. 1; Fig. 3 is anenlarged horizontal-sectional view taken on line 3*3 of Fig. 2; Fig. 4is an enlarged cross-sectional view taken on line 4-1 of Fig. 2; Fig.l 5is an enlarged crosssectional view taken on line 5-5 of Fig. 3, andVFig. 6 is an 'enlarged cross-sectional view taken on line 6-'6 of Fig.3.

1 indicates the center sill, which for the purpose of illustration isshown of the single structural type, and composed of a web plate 2,compression angle bars 3 and 4, and tension angle-bars and G all securedto the web plate 2.l

7 and S indicatesthe vtwo component mem-` bers of the body bolster themain body por-v tions of which are shown of substantially I section, itbeing understood that they may be made of any preferred form to suit thetype of underframe and trucks which it," is contemplated to use. Theyyare yfurnished with side bearings 9, 9, and means 10, 10 for supportingthe side sills, 11', 11.' The ends of the bolster members adjacent tothe center sill, are provided with extensions 12, l2 at substantiallyright angles to their main body, adapted to contact with and be securedto the end portions 18 ofthe center sillweb'plate 2. These extensionportions of the bolster members are further provided with suitableflanges 14, 111, adapted to contact with, and be secured to,the-horizontal flanges ofthe compression anglev bars 3, 4: and tensionangle bars 5, 6, as shown in Fig. 5. The portion l5 of the body bolstermem'- bers, intermediate the main body portion and the flange' portions12, 12, is disposed at an angle of substantially forty five degrees, fora purpose hereinafter referred to and described in detail.

V16, 16 indicates the draft sills which for the purpose of illustrationare shown as being made in one piece, the ends nearest to the bolsterbeing connected by the portions 17, 17 forming connecting webs betweenthe two draft sills. These draft sills are shown of channel section, butmay be made of any other suitable section, to comply with yvariousconditions existing in the underframe of the car. For the purpose ofsecuring the draft sill member tothe bolster members, the latter areeach provided with an eXtension member 18, 1S, extendingsubstantially inthe direction of the longitudinal center line of the car, parallel andin contact with the web portions 19, 19 of the draft sills, and adaptedto be secured to each other as shown in Fig. 3. The draft sill member isfurther provided with upper and lower flanges, 20 and 21, which areadapted to contact with and be secured to corresponding flanges 22, 23on the bolster extension members 18, 18. Y n

The end 24 of the draft sill member 16, neXt to the bolster, isshaped orbeveled to correspond with the angle of the intermediate portions 15',of the body bolster members above referred to, and as an additionalmeans to secure the draft sill members and body bolster memberstogethersubstantial bolts 25 are passed through suitable holes providedin said members, thusk 'connecting these meinbers together in vasubstantial and practical manner. For the purpose of receiving thecenter bearing, the end portion ofthe draft sill member Aand theintermediate po-rtionsyof the bolster members are yshaped so that theyform when secured together cylindrical opening 26, the portionsforminglsuch cylindrical opening` being provided v'v irithfspiralprojections 40, which are, in effect, a female screw thread. l A l T hecenter bearing member shown in vertical section in Figs. 2 and 4,consists ofthe bearing member 27wliich maybe of any preferred form andcontour, `and an upwardly extending or stem portion 28. The stem portion28 is shown of hollow cylindrical form to reduce its weight and admit ofthe insertion of thek king pin, and is priovided on its outer surfacewith a spiral 'proliection 4l, which forms inv effect a screw thread ofsize, proportions and pitch corresponding to that provided in thecylindrical opening2, formed by the end portions of the draft sill 1Gand body bolster members? and 8. Holes 29 are provided in the stemportionof the center bearing member to permit of the insertion of a baror other suitable tool for the purpose of revolving the center' bearingmember on its vertical aXis, when for any reason it is desired tochangethe height of the underframe relative to the lower face 30, of thecenter bearing member, by screwing the stem of the said member fartherinto the opening to lower thejunderframe, or vice versa to raisetheunderframe, the weight 'of the car body and underfram'e, on the loweror truck center bearing, being first relieved by jacks or other"suitable means.V Y Y n For the purposeof preventing accidental rotationof the center bearing in its screw bolster having ends exten socket andlocking the stem of the center bearing member in the desiredverticalposition relative te the undermine@ slot 31 is provided in the endportion of the draft sill member through which a locking member 32 maybe passed, one end of the locking mem` ber/being adapted to engage withvertical slots 33, which are provided in the vscrew thread portion ofthe stem of the bearing member, the other end of the locking memberbeing secured by a machine `screw or other suitable means to the lowerhorizontal flange 34. of the draft sill member. lt is to be understoodthe locking member 32, may be arranged to pass through a slot in theportion 15 of the draft sills, in which case it would be 'secured to oneof the horizontal fianges with which portion 15 is provided.

35 indicates the end sill which may be of any preferred construction,but which is shown in the drawings as being formed of a rolled channel,reinforced by an angle bar 3G. Gusset plates, 37, 37 are secured to thelower flanges of the bolster yand draft sills, and gusset plates 88', 38are secured to the lower flanges of the side sills and end sills, theend portion of the underframe being braced against deformation by thediagonal braces 39, 39, extending from gusset plate 37 to gusset plates38, at each corner of the underframe.

Having thus described my invention, what Ifcl'am 'and desire 'to 'secureby Letters Patent is u Y Y i 1. In a ear underframe, the combinationwith a center bearing member, of Ameans integral with said underframeand means integral` with 'said center bearing member adapted to lengagethe first mentioned means to provide a vertical adjustment of saidcenter bearing member relative `to said underfr'ame. u

2. ln a car underframe, `the combination with a center sill and draftsills, ofi'a `body bolster having ends extending in one direction toengage with and be secured to said center sill, -and havingendsextending in an opposite direction to kengage with and be secured to thedraft sills, the adjacent ends of said bolsteria'nd 'draft sills forminga cylindrical aperture, a screw thread Yformed in saidaperture, a centerbearing having an upper portion, ,ascrew threadon said lupper lportionadapted to cooperate with the screw thread in said aperture. n v

3. In a lc'ar under'frame,l 'thecombination with aenter sill and draftsills, of a lbody l ding` in one direction to engage with 'and besecured to said center sill, and having ends extending in an oppositedirection to ,engage with and be secured to the' draft `'sills, `.tlieadjacent ends of said aperture, a center bearing having an upperportion, a screw thread on said upper portion adapted to coperate withthe screw thread in said aperture, to provide a vertical adjustment ofthe underframe relative to the center bearing.

4. In a car underframe, the combination with draft sills of a centersill terminating between the bolsters, bolsters, the rear ends of whichbend toward and lap past the ends of said center sill, and the frontends of said bolster bend toward and lap past the ends of the draftsills, a cylindrical aperture formed by the adjacent ends of the bolsterand draft Copies of this patent may be obtained for sills, a screwthread formed in said cylindrical aperture, a center bearing memberhaving an upper portion, a screw thread formed on said upper portionadapted to cooperate with the screw thread in said aperture to provide avertical adjustment of the underframe relative to the center bearing.

In testimony whereof I affix my signature in presence of two witnesses.

BURNS D. LOCKWOOD.

IVitnesses:

FRANK E. MILLER, LELA M. GRUNDER.

ve cents each, by addressing the Commissioner of Patents.

Washington, D. C.

